AdaptedLenses wrote:
One more from the 400mm f/5.6, really enjoying this lens. Random question for the Sony shooters though, I’ve been playing with the A7III again and I’m getting what I’d describe as color posterization. A couple versions of the shot to show what I mean, changing the WB makes dramatic differences in the color separations/transitions. Is this an artifact of Compressed RAW?
The specs for compressed vs uncompressed raw on the Sony A7III is 14 bit - many many billions of colors (levels of color luminosity). The color space you shoot in can help in the down sampling. Pro, Adobe, and sRGB the choices in most cameras, and in the A7II it is only srgb, and Adobe. I would set it to Adobe, because it's palette of colors is about 20-30% greater (both are in the 2-3 millions of color levels of luminosity), and both fit within the 16.7 million color jpg container file (bucket) You can test your compressed vs uncompressed raw by saving it as a 16 bit tif. The 16 bit container file (bucket) can hold 281 trillion colors (or shades of color levels of luminosity) So, I doubt you will see any difference. I would just make conversion to the srgb profile the very last step in imaging the file so it's colors look right on the web.
AdaptedLenses wrote:
One more from the 400mm f/5.6, really enjoying this lens. Random question for the Sony shooters though, I’ve been playing with the A7III again and I’m getting what I’d describe as color posterization. A couple versions of the shot to show what I mean, changing the WB makes dramatic differences in the color separations/transitions. Is this an artifact of Compressed RAW?
The specs for compressed vs uncompressed raw on the Sony A7III is 14 bit - many many billions of colors (levels of color luminosity). The color space you shoot in can help in the down sampling. Pro, Adobe, and sRGB the choices in most cameras, and in the A7II it is only srgb, and Adobe. I would set it to Adobe, because it's palette of colors is about 20-30% greater (both are in the 2-3 millions of color levels of luminosity), and both fit within the 16.7 million color jpg container file (bucket) You can test your compressed vs uncompressed raw by saving it as a 16 bit tif. The 16 bit container file (bucket) can hold 4.3 trillion color (or shades of color levels of luminosity) So, I doubt you will see any difference. I would just make conversion to the srgb profile the very last step in imaging the file so it's colors look right on the web.
Dec 18, 2024 at 10:45 PM
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